Heart|Lab Grown|IGI

1.00ct J VS1 Heart Lab Grown Diamond

GD • J/VS1 • IGI LG771639660

Shape and cutting style on the report: Heart modified brilliant

Certificate IGI LG771639660

Diamond specifications and retailer prices

From €248 EUR
As of November 6, 2026
Save €985 EUR (80%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €1,233 EUR at MOH London · As of November 1, 2026
View at MOH London

About this 1ct lab-grown heart diamond

This 1ct lab-grown heart sits in the classic one-carat band, graded J colour (near-colourless) and VS1 clarity (very-slightly-included), with a standard cut grade and certified by IGI LG771639660 or 771639660. Listed at 17 retailers as of November 1, 2026, with prices from €248 to €1,233, a €985 spread on the same certified stone. MOH London lists it at €1,233. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
J
Colour
VS1
Clarity
Good
Cut

Specifications

CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle33.6°
Pavilion angle32°
OriginLab Grown
Grading LabIGI
CertificateIGI LG771639660
Dimensions5.96 × 6.38 × 3.45 mm
L/W Ratio1.07
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.96 mm6.38 mm1.00 ctJ / VS1
OriginLab Grown
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG771639660
Side View
Table 70.0%Crown 33.6°Girdle: THK-VTKPavilion 32°Culet: NoneDepth 54.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: €1,233 EUR|Low: €238 EUR|High: €1,486 EUR|Avg: €630 EUR|-16.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
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Retailer 16
Retailer 17
November 6, 2026
Retailer 17€248 EUR
Retailer 16€288 EUR
Retailer 3€308 EUR
Retailer 5€308 EUR
Retailer 14€344 EUR
Retailer 13€448 EUR
Retailer 2€484 EUR
Retailer 10€509 EUR
Retailer 12€519 EUR
Retailer 4€523 EUR
Retailer 11€530 EUR
Retailer 7€650 EUR
Retailer 15€739 EUR
Retailer 8€824 EUR
Retailer 9€990 EUR
Retailer 6€1,034 EUR
MOH London€1,233 EUR

39 data points across 17 retailers

17 retailers€248 EUR to €1,233 EUR

B+
Cheapest Retailer
-
€248 EUR
B+
Retailer 2
-
€288 EUR
View
Retailer 3
-
€308 EUR
View
Price last confirmed 12 days ago
B+
Retailer 4
-
€308 EUR
View
B+
Retailer 5
-
€344 EUR
View
B
Retailer 6
-
€448 EUR
View
B
Retailer 7
-
€484 EUR
View
B
Retailer 8
-
€509 EUR
View
B
Retailer 9
-
€519 EUR
View
B
Retailer 10
-
€523 EUR
View
B
Retailer 11
-
€530 EUR
View
C
Retailer 12
-
€650 EUR
View
C
Retailer 13
-
€739 EUR
View
C
Retailer 14
-
€824 EUR
View
C
Retailer 15
-
€990 EUR
View
C
Retailer 16
-
€1,034 EUR
View
Most Expensive
C
MOH London
LG771639660 · Nov 1
€1,233 EUR
£1,084 GBP
View
16 more retailers have this diamond
Prices start from €248 EURSave up to €985 EUR

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B+
1.00ct Heart
€248 EUR